Yamaha Self-Locking Nut – 90185-14081-00

Engineered Retention for High-Vibration Yamaha Assemblies

The Yamaha - Nut, self-locking - 90185-14081-00 is a factory-original fastener designed to provide secure, vibration-resistant locking for critical Yamaha engine and equipment components. This nut features a self-locking mechanism that prevents loosening over time, even in high-stress or high-rotation assemblies.

If you’re conducting repairs or preventative maintenance on your Yamaha engine, using this OEM self-locking nut ensures a secure and lasting connection that holds up under pressure.

Key Features

OEM Self-Locking Design

Built-in friction mechanism resists backing off in high-vibration environments.

Precision Fit and Threading

Matches exact Yamaha specifications for reliable assembly without over-tightening.

Durable, Corrosion-Resistant Material

Long-lasting performance in both marine and land-based Yamaha applications.

Factory-Grade Quality

Manufactured to Yamaha’s standards for safety, strength, and endurance.

Compatibility

Part Number: 90185-14081-00

Fits a range of Yamaha outboard motors and equipment (check your specific service manual).

Ideal for use in applications where standard nuts may loosen due to motion or stress.

Ideal Use Cases

Engine and Drive Systems

Ensures components remain secure during high-RPM operation.

Suspension or Chassis Mounting Points

Commonly used where fasteners are prone to vibration-related loosening.

Routine Hardware Replacements

Keep your Yamaha gear in factory condition by replacing worn or previously torqued locking nuts.

Why Choose the Yamaha Self-Locking Nut – 90185-14081-00?

Unlike standard nuts, this self-locking version is purpose-built for reliability under dynamic stress. When safety, engine performance, or equipment longevity is on the line, OEM hardware like this Yamaha nut offers superior assurance over aftermarket alternatives. Its resistance to loosening means fewer inspections and fewer surprises out on the water—or in the field.

Frequently Asked Questions

Is this nut reusable?

Yamaha self-locking nuts are typically single-use for maximum holding strength. Always check your service manual—reuse is not recommended in high-torque or safety-critical locations.

Where is this nut most commonly used?

It’s commonly used in Yamaha outboards and equipment where vibrations are present, such as engine brackets, mounts, or transmission points.

What tools are needed to install it?

Standard metric socket or wrench sizes apply. Always use a torque wrench to achieve factory-recommended tightness without over-compressing the locking feature.

• Supersessions
  90185-14150-00, 90185-14150-00